Senior / Principal Mechanical Building Services Engineer in Manchester

AtkinsRéalis is one of the world’s most respected design, engineering, and project management consultancies, with over 50,000 employees worldwide. We offer an opportunity to make a difference and shape the world to benefit future generations and the natural environment. Our Building Design Practice is looking for an experienced, motivated Senior / Principal Mechanical Design Engineer seeking to develop their career in a positive environment. We have openings in our new central Manchester office, presenting the opportunity to join a national Building Services team with designers across the UK and internationally through our Global Technology Centre.

This role will encompass a multi-sector experience, with expertise from working within the Commercial, Defence, Energy, Education, and Healthcare sectors being beneficial. You will be working on a diverse range of projects, including the Manchester Digital Campus for the Government Property Agency, Seashell SEND college in Cheadle, New Submarine Manufacturing facilities for BAE systems, and the University of Sheffield’s MEP designer framework. The opportunity will require candidates to be client-facing as well as involved in the day-to-day design and management of projects.

Our Building Services Engineering team won the "Building Performance Consultancy (over 300 employees)" award at the CIBSE Building Performance Awards 2025. Energy and Carbon are essential aspects of this position, and with the rise in importance of decarbonising the built environment, improving air quality, and implementing energy-efficient design solutions, our team is expanding to deliver sustainable solutions for our growing portfolio of satisfied clients.

Our focus is on developing our staff to realise their full potential, with development plans geared to individual needs and abilities. This role will allow the development of existing technical skills as well as providing potential to expand digital skills and project management. Our Practice is committed to developing our ways of working using emerging Digital Technology and the global reach offered by an organisation of our size and capability.

Responsibilities:

• Undertake the design and specification of all Mechanical Building Services systems from concept through to detailed design – including heating, cooling, ventilation, and public health systems.
• Carry out and support others in the production of detailed calculations using industry standard software tools including Hevacomp, MEPworx, IES.
• Prepare technical specifications, design reports, and presentations.
• Collaborate with our BIM team to prepare models and drawings, with a working understanding of Revit.
• Represent AtkinsRéalis at meetings with clients and other professionals.
• Conduct condition surveys, inspections, and monitoring of installation and commissioning.
• Manage own workload and ensure projects are delivered excellently within agreed deadlines and budgets.
• Assist with the technical development of junior team members.

About you:

• Relevant experience in Building Services Engineering and an interest in design excellence for building design.
• A natural curiosity and an interest in exploring new ways of working.
• Degree qualified, or equivalent qualification, in Building Services Engineering / Mechanical Engineering, or related subjects.
• Working towards, or a Chartered Member of CIBSE, IMechE or equivalent body.
• Experience with common calculation software such as IES, Hevacomp, StabiCAD, Revit, NBS, and Microsoft packages.
• Knowledge of Thermal modelling for building compliance and building design optimisation would be beneficial.
• Detailed knowledge of UK technical standards and codes of practice.
• Familiarity with energy reduction methods and approaches to decarbonising new and existing buildings.
• Understanding of energy and carbon-related data capture and analytics.
• Competence in designing for measurement and verification, including experience of commissioning and post-installation evaluation of performance.

Reward & benefits:

Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards, and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial, and lifestyle choices. Make the most of opportunities for training and professional development to grow your skills and expertise. Combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

We are committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive, and develop to be the best we can be. We offer a range of family-friendly, inclusive employment policies, flexible working arrangements, and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures, and abilities.